The Danner 10 Watt is a great solution for water sterilization and clarification for ponds up to 1500 gallons in size. The Danner 10 Watt controls the amount of harmful bacteria and algae in your pond for a healthier ecosystem and can be connected to pumps with a flow rate of up to 700 GPH.

The unit is fully submerersible and has a glowing ring that can be easily seen to verify the unit is operating. The water-tight quartz lamp is rated at 9000 hours.